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• Microsoft
• Windows 7
• Embedded board

The Intel Atom® E3800 Series Chipset (formerly codename: Bay Trail) was developed with the future in mind. Many of the legacy functions that have been routinely seen on most platforms, exist only on the E3800 chipset through means of emulation for items such as serial COM ports, whereas support of items like PS/2 mouse and keyboard interfaces are non-existent. Intel opted for the more versatile and popular USB interfaces. However, even USB is implemented with the future in mind, making the XHCI protocol (necessary for USB 3.0) the de facto protocol for USB operation. This creates difficulty for operating systems that were designed with legacy interfaces as the primary selections, such as Microsoft Windows 7.

While Microsoft Windows 8 / 8.1 installs on the E3800 platform without difficulty, Windows 7 is not as user friendly. With the default USB protocol of the E3800 chipset being XHCI, and the default USB pro- tocol of Windows 7 being EHCI, an incompatibility is created at the outset. Windows 7 does not support the XHCI USB protocol within its installer / bootloader. XHCI isn’t available in the Windows 7 operating system without the addition of the Intel USB 3.0 eXtensible host controller driver, after the base installa- tion of the Windows 7 operating system and chipset updates are installed. The following instructions are needed to guide the user through the process of installing Windows 7, as the standard method does not allow usage of USB input devices during Windows 7 install process.

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